We have a new publication (link) in our group by Marina Imsiecke investigating the interactions between electric and acoustic stimulation in cochlear implant subjects that retain residual hearing after implantation and its relation to speech outcomes. Moreover we designed a new EAS fitting map that was assessed in a chronic study in CI users.
Here the main conclusions from the study: 1) The study confirmed the interaction between electric and acoustic stimulation in a psychoacoustic masking experiment. (2) The overlap fitting yielded poorer speech reception performance in stationary noise especially in subjects with strong masking. (3) The newly developed UNMASKfit strategy yielded similar speech reception thresholds with an enhanced acoustic benefit, while at the same time reducing the electric stimulation. This could be beneficial in the long-term if applied as a standard fitting, as hair cells are exposed to less possibly adverse electric stimulation. In this study, the UNMASKfit allowed the participants a better use of their natural hearing even after 1 month of adaptation."
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